A fuel cell cold start zone performance test system and test method

Abstract

The invention relates to a fuel cell cold-start partition performance testing system and a testing method. The testing system comprises a fuel cell, an oxidant supply unit, a fuel supply unit, a clamping unit, a humidification unit, a cooling pipe, a high and low temperature box, and a partition test plate , a load unit, a data acquisition unit and a data processing unit; the test method is as follows: the sub-area test plate replaces the anode plate of the fuel cell; the temperature in the high and low temperature box reaches the set low temperature ambient temperature; the fuel cell is provided with oxidant and fuel , make it work normally; the data acquisition unit collects the voltage drop across each embedded resistor, the voltage of each temperature resistor and the current flowing through the temperature resistor in real time; the data processing unit calculates the current density of each partition inside the fuel cell according to the received signal The distribution and the zone temperature at each moment are obtained to obtain the current density distribution map and the temperature distribution map. Compared with the prior art, the present invention has the advantages of convenient operation, visualization measurement, and high stability.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell cold start zone performance test system and a test method. Background technique [0002] With the shortage of traditional energy sources such as fossils and the continuous warming of the global climate, human beings are facing a huge energy crisis and survival crisis. It is urgent to seek new, efficient and clean energy to gradually replace traditional energy to deal with the energy crisis. Due to its excellent performance, fuel cells have become a research hotspot in various countries in the world, and have played a huge role in power generation, mobile power supply, and vehicle power supply. The research on fuel cell vehicles is getting deeper and deeper, but there are still technical bottlenecks in its commercialization. In addition to battery durability and cost factors, improving low-temperature start-up performance is also one of the key issues. [0003] When the loc...

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Problems solved by technology

[0004] Currently published patents and papers have no content on the performance test of fuel cell cold start partitions, and most of them only focus on the test of the overall performance of fuel cell cold start

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